Shelf Life Prediction of Chocomix Instant Chocolate Beverage Powder Using Accelerated Shelf Life Testing (ASLT) based on Critical Moisture Content Approach

DOI: https://doi.org/10.14710/reaktor.18.2.63-70
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Article Info
Submitted: 16-06-2017
Published: 23-06-2018
Section: Research Article
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Chocomix chocolate beverage powder is one of the increased value-added cocoa products by Griya Cokelat Nglanggeran. The aimed of this study to estimate the shelf life using Accelerated Shelf Life Testing (ASLT) based on critical moisture content. Results showed that critical moisture content of Chocomix was 4.01 % (db). Moisture sorption isotherm (MSI) curve of Chocomix at 28oC was type II isothermic sigmoidal with 2 curves at the ranged of water activity between 0.24 and 0.68; and the equation was  y = 86.584X3 – 91.893X2 + 28.818X – 0.470. The calculation showed that estimated shelf life of Chocomix stored in 51.89 µm thick package at 28oC was 16.4 months.

Keywords: chocolate powder, critical moisture content, moisture sorption isotherm, shelf life

Keywords

chocolate powder, critical moisture content, moisture sorption isotherm, shelf life

  1. Rifa Nurhayati 
    Research Unit for Natural Product Technology Indonesian Institute of Sciences, Jl. Jogja-Wonosari km 31,5 ds Gading, Playen, Gunungkidul, Yogyakarta 55861, Indonesia, Indonesia
  2. Rosi Pratiwi 
    Department Food Science and Technology, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A, Kentingan, Surakarta 57126, Indonesia
  3. Baskara Katri Anandito 
    Department Food Science and Technology, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A, Kentingan, Surakarta 57126, Indonesia
  4. Ervika Rahayu Novita 
    Research Unit for Natural Product Technology Indonesian Institute of Sciences, Jl. Jogja-Wonosari km 31,5 ds Gading, Playen, Gunungkidul, Yogyakarta 55861, Indonesia
  5. Mukhammad Angwar 
    Research Unit for Natural Product Technology Indonesian Institute of Sciences, Jl. Jogja-Wonosari km 31,5 ds Gading, Playen, Gunungkidul, Yogyakarta 55861, Indonesia